DCC voltmeter adapter. This originally was posted in the Yahoo NCE Group and the circuit is from NCE.
http://cs.trains.com/trccs/forums/p/172398/1892576.aspx#1892576
Rich
If you ever fall over in public, pick yourself up and say “sorry it’s been a while since I inhabited a body.” And just walk away.
Tks for the heads up Rich. I just ordered two. And dito on "what modification" to monitor DCC track voltage. I ran across the info a couple of weeks ago but didn't have a spare DVM so I passed it by and can't remember where I saw it.
What 'modifications' need to be made to enable the meter to read DCC voltages?
The Harbor Freight meters are a great deal! I bought one for my layout, one for the car, and put one in my toolbox. Just for fun, I checked the accuracy. I used a zinc-air battery cell to check voltage - good to +/- 0.1 volt. I checked some 10% resistors - good to 10%. Can't beat that with a stick!
I have a "Fluke" multimeter that I use for major stuff and 3 of those Harbor Freight special $3.99 multimeters. I love those $3.99 meters...smoke it...toss it. I thought about panel meters for my control panel, instead I'm going to use the $3.99 special, mount it with velcro and run the leads through a 12 point contact rotary switch so I can measure voltages at various locations on the layout.
Just looked down to my right. I see two and know I have a third for my planes. Still at 3 or four bucks...
Tilden
Considering I've seen the exact same meter (maybe with a different color case and a different name, but it's the exact same one) sold some places for as high as $15-$20 - yeah, stock up at HF. Actually mine happen to be red, but still labeled as Cen-Tec - I have like 3 of them.
--Randy
Modeling the Reading Railroad in the 1950's
Visit my web site at www.readingeastpenn.com for construction updates, DCC Info, and more.
Great deal.
Springfield PA
Harbor Freight again has their DVM on sale for $3.99. Cannot go wrong.
Below is am adapter I made to monitor DCC voltage using the same type meter.